Title :
A 30-mW 10.7-MHz pseudo-N-path sigma-delta band-pass modulator
Author :
Francesconi, F. ; Caiulo, G. ; Liberali, V. ; Maloberti, F.
Author_Institution :
Dipartimento di Elettronica, Pavia Univ., Italy
Abstract :
This paper presents a sigma-delta modulator designed to convert band-pass signals for digital radio and cellular telephony. The proposed architecture employs only one operational amplifier, thus allowing a reduction of power consumption. A prototype implemented in a 1.2-/spl mu/m double-poly double-metal BiCMOS technology exhibits an SNR equivalent to 8 bits of resolution over a 200-kHz band, and dissipates only 30 mW with a 5-V supply.
Keywords :
BiCMOS integrated circuits; cellular radio; digital radio; mixed analogue-digital integrated circuits; modulators; sigma-delta modulation; 1.2 micron; 10.7 MHz; 200 kHz; 30 mW; 5 V; band-pass signals conversion; cellular telephony; digital radio; double-poly double-metal BiCMOS technology; opamp; operational amplifier; power consumption reduction; pseudo-N-path configuration; sigma-delta band-pass modulator; BiCMOS integrated circuits; Delta-sigma modulation; Digital communication; Digital modulation; Energy consumption; Operational amplifiers; Power amplifiers; Prototypes; Signal design; Telephony;
Conference_Titel :
VLSI Circuits, 1996. Digest of Technical Papers., 1996 Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-3339-X
DOI :
10.1109/VLSIC.1996.507716
